You might want to Google "lexapro withdrawal auntybiotic" and read through the hundreds of posts on the subject. My daughter just finished tapering off Lex six weeks ago so I've spent alot of time reading about it. She wasn't on it as long as you were but did a very slow taper (over several months) and is doing well.
Some might suggest you go back on a dose that you last were ok on until you stabilize there for awhile then do a very slow taper. I don't know since that's not how we went. If you don't want to try that then you might try supplements. My daughter took Omega 3 fish oil, magnesium (those two I think were important) and also lecithin, Vit C, sometimes choline and inositol. She drank DanActive (yogurt drink) and sometimes whey protein.
My daughter tapered a little at a time ( 10 mg to 7.5 to 5 to 4.5 to 4, 3.5, 3, 2.5, 2, 1.5, 1, .5 her last step was .25 mg (¼ of 1 mg.). She waited about 2 weeks after each reduction to stabilize (though she stayed on 5 mg for a month). She is doing fine after 6 weeks of being totally off. We think taking the time to do a slow slow taper was worth it. She had a few minor withdrawal problems during the taper but has been problem free since stopping.
I hope you'll find some relief.
hey i m tapering off lexapro too. i ve also been on the 10 mg for 3 years. i have started tapering with 5 mg for a month and now going down further. as already mentioned in the post above, it mght be a good idea to go back to the dose you were feeling ok with earlir, and then try tapering very gradually. also, do make sure you do this with your doc. dont taper on your own. esp with lexapro, its not good to go off it abruptly. so please make sure you see your doc and go along with the schedule he or she gives you.take care